Heat-dissipating type of power converter

Patent metadata

Field	Value
Publication number	US-9433125-B2
Application number	US-201313846728-A
Country	US
Kind code	B2
Filing date	Mar 18, 2013
Priority date	Aug 30, 2012
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

A heat-dissipating type of power converter comprises a support unit, at least one power module, at least one pair of rails and at least one main air duct module corresponding to the at least one power module. The pair of rails are fixed to the support unit and parallel to each other. The power module comprises a mounting plate module, a power unit and a radiator. wherein the power unit is fixed to the radiator, and the mounting plate module and the radiator are fixedly connected to each other. the main air duct module is fixed to the support unit and provided between the pair of rails, a second opening is defined in a side of the main air duct module toward the power module. The power module is assembled with or disassembled from the main air duct module by sliding along the pair of rails. Wherein after the power module is assembled with the main air duct module, the radiator is plugged into the main air duct module through the second opening, the power unit is positioned outside the main air duct module, and the main air duct with a sealed sidewall is defined by the mounting plate module, the radiator and the main air duct module.

First claim

What is claimed is:

1. A heat-dissipating type of power converter comprising:
a unitary support unit;
at least one pair of rails fixed to an entirety of the support unit and parallel to each other;
at least one main air duct module fixed to the same support unit as the at least one pair of rails, wherein the main air duct module is positioned between the pair of rails, and the main air duct module has an opening defined therein; and
at least one power module comprising a mounting plate module, a power unit and a radiator, wherein the power unit is fixed to the radiator, and the mounting plate module is fixed to the radiator;
wherein
the power module is configured to be assembled with or disassembled from the main air duct module by sliding along the pair of rails, and
when the power module is assembled with the main air duct module, the radiator is plugged into the main air duct module through the opening of the main air duct module, the power unit is positioned outside the main air duct module, and a main air duct with a sealed sidewall is defined by the mounting plate module, the radiator and the main air duct module.

2. The power converter according to claim 1 , wherein the radiator has a shape of rectangular block with a width direction oriented along the rails.

3. The power converter according to claim 1 , wherein the power unit comprises a plurality of power sub-units arranged in parallel on a surface of the radiator connected to the mounting plate module.

4. The power converter according to claim 1 , wherein
the main air duct module has a shape of rectangular block with a width direction oriented along the rails, a length direction perpendicular to the rails and a height direction consistent with a standing direction of the main air duct module,
two parallel side plates are provided along the length direction of the main air duct module, and
a width of the main air duct module is larger than a width of the radiator.

5. The power converter according to claim 4 , wherein the main air duct module comprises a first closure plate and a second closure plate respectively arranged at two opposite sides of the opening of the main air duct module along the height direction of the main air duct module, the first closure plate and the second closure plate are fixed to two side plates of the main air duct module respectively, and the second closure plate is fixed to the support unit.

6. The power converter according to claim 5 , wherein
the mounting plate module comprises a panel having an opening for the power unit passing through and being fixed to a side of the radiator provided with the power unit, and
after the radiator is plugged into the main air duct module, overlap regions are defined between the panel and the first and second closure plates, and a fastener is provided at the overlap regions to fix the power module to the main air duct module.

7. The power converter according to claim 6 , wherein the mounting plate module further comprises two parallel side mounting plates adjacent to the panel, a distance between two side plates of the main air duct module is larger than that between the two side mounting plates.

8. The power converter according to claim 7 , wherein a length of the main air duct module is slightly larger than a sum of the distance between the two side mounting plates and a total thickness of the two side mounting plates, wherein the two side mounting plates are positioned between two side plates of the main air duct module.

9. The power converter according to claim 7 , wherein there are gaps between the upper portion of the second closure plate of the main air duct module and two side plates respectively.

10. The power converter according to claim 6 , wherein the mounting plate module further comprises two parallel side mounting plates adjacent to the panel, and a distance between two side mounting plates is larger than that between two side plates of the main air duct module.

11. The power converter according to claim 10 , wherein the distance between two side mounting plates is slightly larger than a sum of the distance between two side plates of the main air duct module and a total thickness of two side plates, and wherein after the radiator is plugged into the main air duct module, the two side plates of the main air duct module are positioned between the two side mounting plates.

12. The power converter according to claim 1 , wherein the mounting plate module comprises a panel and two parallel side mounting plates adjacent to the panel, the panel having an opening for the power unit passing through and being fixed to a side of the radiator provided with the power unit, and
wherein the radiator is mounted between the two side mounting plates.

13. The power converter according to claim 12 , wherein one handle is provided to a portion of the panel close to the rails, and another handle is provided to a portion of the panel away from the rails.

14. The power converter according to claim 1 , wherein the mounting plate module further comprises two parallel side mounting plates adjacent to the panel, a distance from two side mounting plates to a plane defined by the rails is less than that from the panel to the plane defined by the rails.

15. The power converter according to claim 1 , wherein the power converter further comprises at least one fan, the fan and the main air duct module being mounted to two opposite sides of the support unit; and at least one third opening is defined in the support unit for conducting an airflow into the main air duct module by the fan.

16. The power converter according to claim 1 , wherein the power unit is a voltage source converter.

17. The power converter according to claim 1 , wherein a cross-section of the rail is U-shaped, L-shaped or C-shaped.

18. The power converter according to claim 1 , wherein the power converter comprises a plurality of power modules, a plurality of main air duct modules and a plurality pairs of rails are fixed to the support unit, wherein the number of the main air duct modules is the same as the number of the power modules, and wherein the plurality of main air duct modules are in a mirror-symmetrical and back-to-back arrangement.

19. The power converter according to claim 18 , further comprising a same number of fans corresponding to the main air duct modules as that of the power modules, wherein the fans and the main air duct modules are mounted to two opposite sides of the support unit respectively, and the fans is in a mirror-symmetrical arrangement.

20. The power converter according to claim 18 , further comprising a wind-collecting hood connected to an end of the main air duct modules away from the support unit for collecting and discharging an airflow from the main air duct modules.

Assignees

• Delta Electronics Inc

Inventors

• Yan Kaitian
• Li Bagao
• Wang Xu

Classifications

• H05K7/20154 Primary

  Heat dissipaters coupled to components · CPC title

• H05K7/20918 Primary

  the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels · CPC title